rs146795505

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PVS1_ModeratePM2

The NM_014321.4(ORC6):​c.2T>A​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 152,038 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

ORC6
NM_014321.4 start_lost

Scores

6
3
7

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.86

Publications

15 publications found
Variant links:
Genes affected
ORC6 (HGNC:17151): (origin recognition complex subunit 6) The origin recognition complex (ORC) is a highly conserved six subunit protein complex essential for the initiation of the DNA replication in eukaryotic cells. Studies in yeast demonstrated that ORC binds specifically to origins of replication and serves as a platform for the assembly of additional initiation factors such as Cdc6 and Mcm proteins. The protein encoded by this gene is a subunit of the ORC complex. Gene silencing studies with small interfering RNA demonstrated that this protein plays an essential role in coordinating chromosome replication and segregation with cytokinesis. [provided by RefSeq, Oct 2010]
VPS35 (HGNC:13487): (VPS35 retromer complex component) This gene belongs to a group of vacuolar protein sorting (VPS) genes. The encoded protein is a component of a large multimeric complex, termed the retromer complex, involved in retrograde transport of proteins from endosomes to the trans-Golgi network. The close structural similarity between the yeast and human proteins that make up this complex suggests a similarity in function. Expression studies in yeast and mammalian cells indicate that this protein interacts directly with VPS35, which serves as the core of the retromer complex. [provided by RefSeq, Jul 2008]
VPS35 Gene-Disease associations (from GenCC):
  • Parkinson disease
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • Parkinson disease 17
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp
  • hereditary late onset Parkinson disease
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • intellectual disability
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PVS1
Start lost variant, next in-frame start position is after 3 pathogenic variants. Next in-frame start position is after 20 codons. Genomic position: 46689763. Lost 0.076 part of the original CDS.
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ORC6NM_014321.4 linkc.2T>A p.Met1? start_lost Exon 1 of 7 ENST00000219097.7 NP_055136.1
ORC6XM_011522978.4 linkc.2T>A p.Met1? start_lost Exon 1 of 6 XP_011521280.1
ORC6NR_037620.2 linkn.49T>A non_coding_transcript_exon_variant Exon 1 of 7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ORC6ENST00000219097.7 linkc.2T>A p.Met1? start_lost Exon 1 of 7 1 NM_014321.4 ENSP00000219097.2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152038
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
33
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152038
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74284
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41402
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5146
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67988
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.62
D
BayesDel_noAF
Pathogenic
0.19
CADD
Uncertain
24
DANN
Benign
0.89
DEOGEN2
Benign
0.058
T;T
Eigen
Benign
-0.055
Eigen_PC
Benign
0.036
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Pathogenic
0.80
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
0.0
.;.
PhyloP100
1.9
PROVEAN
Benign
-1.6
N;N
REVEL
Uncertain
0.40
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Vest4
0.89
ClinPred
0.86
D
GERP RS
4.9
PromoterAI
-0.35
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.97
gMVP
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs146795505; hg19: chr16-46723619; API